113973916571 has 4 divisors (see below), whose sum is σ = 118929304272. Its totient is φ = 109018528872.

The previous prime is 113973916531. The next prime is 113973916583. The reversal of 113973916571 is 175619379311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113973916571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113973916531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2477693816 + ... + 2477693861.

It is an arithmetic number, because the mean of its divisors is an integer number (29732326068).

Almost surely, 2^113973916571 is an apocalyptic number.

113973916571 is a deficient number, since it is larger than the sum of its proper divisors (4955387701).

113973916571 is an equidigital number, since it uses as much as digits as its factorization.

113973916571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955387700.

The product of its digits is 1071630, while the sum is 53.

The spelling of 113973916571 in words is "one hundred thirteen billion, nine hundred seventy-three million, nine hundred sixteen thousand, five hundred seventy-one".